Solubility and phase in equilibrium in the K2Br2/MnBr2/Mn(H2PO2)2/H2O system.

被引:13
作者
Alisoglu, V [1 ]
机构
[1] Univ Kafkasse, Dept Chim, Kars, Turkey
来源
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE C-CHIMIE | 1998年 / 1卷 / 12期
关键词
potassium; manganese; hypophosphite; ternary system; eutonic point; crystallisation fields; viscosity;
D O I
10.1016/S1251-8069(99)80046-2
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
To elaborate a new method of synthesis of manganese hypophosphite based on an exchange reaction, the solubility in the K2Br2/MnBr2/Mn(H2PO2)(2)/H2O system has been investigated by isothermal method at 25 degrees C. For this purpose at first ternary systems K2Br2/MnBr2/H2O, MnBr2/Mn(H2PO2)(2)/H2O and section K2Br2/Mn(H2PO2)(2)/H2O have been investigated and their eutonic point composition was found. Then, making use of the eutonic point composition the solubility and phases in equilibrium in the K2Br2/MnBr2/Mn(H2PO2)(2)/H2O system have been investigated by isothermal method at 25 degrees C. For the system in question the composition of the eutonic point has been determined: KBr 10.21, MnBr2 57.37, Mn(H2PO2)(2) 1.35 and H2O 31.07 %. The field of cristallisation of the Mn(H2PO2)(2). H2O occupies 90.7 % of the total. (C) Academie des sciences/ Elsevier, Paris.
引用
收藏
页码:781 / 785
页数:5
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